Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 773 · 40 sums

The method (Grow it every year): Year by year: new amount = amount × (100 + R) ÷ 100. Amount after T years = P × (1 + R/100)ᵀ; compound interest = amount − P. A value falling by R% each year: × (100 − R) ÷ 100 every year. For 2 years, CI − SI = P × R × R ÷ 10000.

1. 1.What is the difference between the compound interest and the simple interest on ₹2400 at 10% per year for 2 years (in ₹)?
2. 2.What amount will ₹52100 grow to in 2 years at 20% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹54600 at 10% per year for 2 years (in ₹)?
4. 4.Find the compound interest on ₹8000 at 25% per year for 3 years, compounded every year (in ₹).
5. 5.A scooter is worth ₹57500. Its value falls by 12% every year. What will it be worth after 2 years (in ₹)?
6. 6.What is the difference between the compound interest and the simple interest on ₹21200 at 5% per year for 2 years (in ₹)?
7. 7.What amount will ₹16400 grow to in 1 year at 10% per year compound interest (in ₹)?
8. 8.Find the compound interest on ₹43600 at 5% per year for 2 years, compounded every year (in ₹).
9. 9.What is the difference between the compound interest and the simple interest on ₹27500 at 12% per year for 2 years (in ₹)?
10. 10.Find the compound interest on ₹49100 at 8% per year for 1 year, compounded every year (in ₹).
11. 11.A town has 21300 people. The population grows by 25% every year. What will the population be after 1 year?
12. 12.A scooter is worth ₹57000. Its value falls by 20% every year. What will it be worth after 3 years (in ₹)?
13. 13.What amount will ₹56000 grow to in 3 years at 15% per year compound interest (in ₹)?
14. 14.What is the difference between the compound interest and the simple interest on ₹40000 at 8% per year for 2 years (in ₹)?
15. 15.What is the difference between the compound interest and the simple interest on ₹24000 at 5% per year for 2 years (in ₹)?
16. 16.What is the difference between the compound interest and the simple interest on ₹22500 at 4% per year for 2 years (in ₹)?
17. 17.Find the compound interest on ₹30400 at 25% per year for 2 years, compounded every year (in ₹).
18. 18.What is the difference between the compound interest and the simple interest on ₹42500 at 8% per year for 2 years (in ₹)?
19. 19.What is the difference between the compound interest and the simple interest on ₹52000 at 10% per year for 2 years (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹15000 at 4% per year for 2 years (in ₹)?
21. 21.What amount will ₹40000 grow to in 3 years at 15% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹60000 at 5% per year for 2 years (in ₹)?
23. 23.What amount will ₹52300 grow to in 1 year at 25% per year compound interest (in ₹)?
24. 24.A scooter is worth ₹47000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
25. 25.A scooter is worth ₹53000. Its value falls by 10% every year. What will it be worth after 3 years (in ₹)?
26. 26.A scooter is worth ₹37800. Its value falls by 4% every year. What will it be worth after 1 year (in ₹)?
27. 27.What is the difference between the compound interest and the simple interest on ₹37500 at 8% per year for 2 years (in ₹)?
28. 28.Find the compound interest on ₹47500 at 4% per year for 2 years, compounded every year (in ₹).
29. 29.Find the compound interest on ₹1600 at 25% per year for 3 years, compounded every year (in ₹).
30. 30.Find the compound interest on ₹29900 at 10% per year for 1 year, compounded every year (in ₹).
31. 31.What amount will ₹54400 grow to in 3 years at 25% per year compound interest (in ₹)?
32. 32.What amount will ₹49100 grow to in 1 year at 4% per year compound interest (in ₹)?
33. 33.A scooter is worth ₹39400. Its value falls by 10% every year. What will it be worth after 1 year (in ₹)?
34. 34.Find the compound interest on ₹5000 at 10% per year for 2 years, compounded every year (in ₹).
35. 35.What amount will ₹53500 grow to in 1 year at 8% per year compound interest (in ₹)?
36. 36.Find the compound interest on ₹13000 at 4% per year for 1 year, compounded every year (in ₹).
37. 37.What amount will ₹16700 grow to in 2 years at 20% per year compound interest (in ₹)?
38. 38.What is the difference between the compound interest and the simple interest on ₹32500 at 4% per year for 2 years (in ₹)?
39. 39.Find the compound interest on ₹60000 at 4% per year for 2 years, compounded every year (in ₹).
40. 40.Find the compound interest on ₹12300 at 25% per year for 1 year, compounded every year (in ₹).

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